Thermostatically controlled motors do not work the fan until the engine coolant rises above normal operating temperature, and then switch off when it has cooled down again. What really matters is the temperature of the lower radiator hose. Note that the only thing different about the 06’ parts car is that the 06 bumper came with an integrated homelink module so there’s an extra plug in the bumper. I’m not getting any codes for the fan, and the car hasn’t given me any indication of overheating. Another symptom of a possible problem with the cooling or radiator fan motors is the vehicle overheating. Not able to pull over and check fan as I was in traffic. The radiator fan is obviously the one that Rob had problems with - dirty contacts on the sensor. I’m in Chicago and it’s cold. The thermostat is one of those parts that many don't think about, but... Hello. Help! About 31 degrees out right now. Nissan Frontier - Car is not starting - Dacula, Georgia, Mercury Grand Marquis - Intake Manifold Gaskets - Gwynn Oak, Maryland. it is not overheating at this time probaly because it is winter. Once the problem has been diagnosed, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. Coolant air bubble Any advice welcomed and ideas for testing and eliminating. Hope this helps. If the motors fail or surge, they may cause the fuse to blow in order to protect the rest of the system from any sort of damage due to electrical surges. The cooling fan motors work together with the cooling fan blades to pull air through the radiator. Thus began the elimination process, I took the car to a local mechanic to get the head gasket checked which came back as okay, I have replaced the following items all with genuine Subaru parts. If it were, the engine would run hot when idling or driving at slow. Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, Over 25,000 topics, from beginner tips to technical guides, Check cars for recalls, common issues & maintenance costs, Hand-picked, community-rated professionals, Our mechanics make house calls in over 2,000 cities, Explore nationwide job opportunities for automotive technicians, Trusted mechanics, rated by thousands of happy car owners, Fleet maintenance with certified mobile mechanics. Radiator cooling fan not working, code p149. If the radiator fan is not working, it’s a serious problem.. Just because the radiator fan is not on does not mean that it is not working. The problem of the radiator fan not working will cause tremendous damage to the engine and thus must receive immediate attention when it arises. Radiator fan not working overheating - Town Car Lincoln Cars & Trucks. Radiator fan not working/Overheating to max DISCLAIMER: fordownersclub.com is an independent Ford forum for owners of Ford vehicles. Took it to the mechanic and he replaced my radiator fan. The radiator fans simply stopped working. The compressor is a pump for the A/C system and when it gets weak, it does not pump as well as it should. Coolest fans not working and it overheating once in awhile. 30% and 40% often will not cause any speed increase for fan but when you get to 80 or 90% it will come on and then decreasing duty cycle may see speed drop but still work. They will be able to look over your vehicle and replace your cooling fan motor. Another symptom of a possible problem with the cooling or radiator fan motors is the vehicle overheating. Could this be possible? although if the fan isn't very free spinning, chances are its knackered. I realized that the radiator and condenser cooling fans were not coming on when needed (after a half hour of the engine running) so I pulled the relay switch and used a paper clip to "jump" it and the fans came on. If your heater is not getting warm enough and the engine is not reaching operating temperature for a long time then your engine most likely has a thermostat that is stuck open. Overheating, fan not working consistently; need to change coolant fan relay - cannot locate. Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Question about car overheating, Automotive, 35 replies Radiator fans won't stop working - 2001 Chysler Town and Country, Chrysler, Dodge, Jeep, and Ram, 10 replies I can't explain the overheating., Automotive, 25 replies so frustrated with this overheating, Automotive, 36 replies Neon '01 overheating, Automotive, 13 replies the second way the ac would work is only if i disconnect the temperature sensor. Typical thermostat operating temperature is 80C to 95C, fan start point is typically 90C to 105C. I've replaced my fan clutch and my thermostat. Alright I have a problem. The fan helps keeps the radiator cool when the vehicle is not in motion. Radiator fan testing points. It is the job of the cooling fans to provide that air flow, and they do so using electric motors. If you’re leaking antifreeze but not overheating or you have a car leaking antifreeze when parked, you still have a chance to repair your vehicle for a lower cost. Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Asim Jahangir, Jun 16, 2014. I know that it should go on once in a while when the cars temp is up there. A lot of newer vehicles have very quiet fans, so you would likely not hear the fan while the car is running. If it does check the fuses, the fan relay if those are okay you want to check your coolant sensor. Overheating, not sure if fan is blowing 5 Answers. I also did this at the radiator fan switch and again, the fans started working. Working as part of the engine cooling system alongside coolant, a radiator fan blows cool air through the radiator as a means of heat transfer to prevent the engine from overheating. The club is not part of Ford nor affiliated with or endorsed by Ford in any way. 3. It's been overheating for the last couple weeks now. Since you saw one running and one not, the one not running has a wiring problem or the motor is dead. While While many people are familiar with the major parts in their vehicle, there are all kinds of smaller parts that play a vital role as well. Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. Head gasket (Kwik Fit checked for this, no sign of it, so highly doubtful) 4. Not exactly sure what is going on as I am not a car person what-so-ever. Then after removing the back head to replace the head gasket, I finally found the REAL problem. If it gets too hot to hold the sensor that controls the fan relay is at fault, but if it just gets uncomfortably hot the system is not actually overheating (that occurs when the system becomes saturated with coolant too hot to remove heat from the engine); it is not holding pressure properly. The Fan works when I turn the AC on 2. Overheating, radiator fan not working, and exclamation mark sign on HUD. As they are the component that rotates the fan blades and creates the air flow, any issues that eventually arise with the fan motors can quickly develop into other problems. A stuck open thermostat can be verified by... You are right to be concerned, as this amount of time could drain the car’s battery, which would leave you having to jump-start your car. Have you checked the bulbs? Overheating, radiator fan not working, and exclamation mark sign on HUD. Because at 70 MPH, a hell of a lot more air is being rammed thru that radiator to remove heat faster than the radiator fan(s) can do when idling or driving slow. The electric motors found on many cooling fans are not much different than regular industrial use electric motors, and are often a serviceable or replaceable component of the cooling fan assembly. I took the cars to two different mechanic shop with no solution to the overheating. Head gasket (Kwik Fit checked for this, no sign of it, so highly doubtful) 4. Bottom line: Fans are NOT coming on at any time...hot or cold...even when I turn the A/C on the fans do not come on. I tried everything, new fan sensor, new water pump, new thermostat, jacked up the front end to purge the cooling system. It is the last line of defense between you and an overheating engine. Polo Overheating/Fans not coming on Post by Millenios » Tue Jun 28, 2016 12:44 pm 1.2 2004 Polo 58k started to overheat on the motorway, so pulled over to let the car cool down & it was fine after so I assumed a sticking thermostat which I have replaced. Want Answer 0. Unplug the radiator fan connector. The temperature sensor determines when the radiator fan comes on by reading the cooling system temperature. Engine bay fan - at driver's side rear air intake You can easily tell which one is running once out of the car. Please, help! the fan would not cut in to cool. The fuse will have to be replaced to restore possible functionality to the fans. I discovered the fan relay issue after they finally got stuck on. If the sensor isn’t working, your fan won’t come on because it won’t know that the temperature is hot enough to require activation, which can frequently lead to overheating. Q: Fan not working and car overheating. Radiator. Also turn on the a/c, and check that the radiator fan runs at low speed, even with a cool engine. I'm a beginner mechanic and I'm so stumped. It was cold out, so I just turned the fan off. as custard said - test it by running power directly too it. Electric radiator-fan motors are switched on either by the ignition switch - and run while the engine is working - or by a thermostatic switch. Radiator fan not working To whom it may concern my 2001 mazda mpv van radiator fan is not working the mechnic i took it too seem to think its electrical but not sure? Also, when I disconnect the fan and check the plug (at top of radiator) there is 12V coming from one of the 4 prongs (regardless of the temperature of the motor), so it is like the ground circut is not getting closed. YourMechanic’s technicians bring the dealership to you by performing this job at your home or office 7-days a week between 7AM-9PM. Radiator fan not working To whom it may concern my 2001 mazda mpv van radiator fan is not working the mechnic i took it too seem to think its electrical but not sure? to test the fan switch, unplug it and short out the two connections. The primary purpose of the radiator fan is to prevent the engine from overheating when there’s not enough airflow, ie. I do not think my radiator fan is working. No fans. by the way, the ac is not blowing cold air at all. The radiator fan is obviously the one that Rob had problems with - dirty contacts on the sensor. The radiator fan should not start until quite some time after the thermostat opens (with a/c off). Radiator fan not working, engine overheating, blowing cold air, but nothing leaking. It did not seem to be losing any coolant. Radiator fan - at the front 2. Our certified mobile mechanics perform over 600 services, including diagnostics, brakes, oil changes, scheduled mileage maintenances, and will come to you with all necessary parts and tools. Overheating The possibilities are (from my research online): 1. The leak could be due to the reservoir overfilling due to over expansion from heat. 3. Made with ♥ in Silicon Valley. Watch this video to figure out how to diagnose problems with the cooling fan relay on a Chrysler. My car started overheating. My car is not overheating since I … The statements expressed above are only for informational purposes and should be independently verified. 2. - Answered by a verified Mechanic for Honda i have changed the fuse box on top of the battery and the fans control relay about 1 year ago. 2. How to Buy a Good Quality Heater Blower Motor Resistor, Symptoms of a Bad or Failing Cooling Fan Relay. To perform a visual check, you will simply open the hood while the vehicle is running and listen for the fan closely. The resistor does this by drawing air through the radiator and air conditioning condenser. The sensor is usually located in the car thermostat cover. i thought it may be sticking thermostat or water pump or sensor in radiator that brings in fan. Q: The temperature gauge goes to the highest point. My problems started with overheating and what I thought was a radiator leak. Just an update for all you guys out there that have been trying to help me! Anyway my fans came on at 210 degrees!!! Coolant levels OK. If the radiator fan is in working condition, move on to the next step. I've researched it and apparently i need a new resistor. I have a 1995 BMW 520i. So i replaced the thermostat (thinking that i might need to change it anyway, i'm already up to 98K km) this morning but it still not working. 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Putting a new fan thought it may be Bad listen for the fans together with the cooling are...